American Idol Season 8 runner-up Adam Lambert is joining the cast of Glee, series creator Murphy announced on Twitter Wednesday. "I am thrilled to announce that the super talented Adam Lambert is joining the cast of Glee this fall," Murphy tweeted.

Lambert's name has been thrown around as a possible guest star on the Fox musical series since Season 1, when Murphy told Entertainment Weekly that he was considering approaching the Idol finalist. However, "Glambert" dampened fans' hopes when he told Ryan Seacrest the news was "just a rumor. I haven't heard anything officially about that." (Join the club, Lambert!)

It is unknown who Lambert will play on Glee. Maybe the new coach for New Directions' longtime rival glee club Vocal Adrenaline? Or maybe a cool NYADA teacher to offer guidance to Rachel and Kurt? The possibilities are endless!

Lambert is the second Idol finalist to appear on the show. Season 11 runner-up Jessica Sanchez recurred for two episodes last season as the powerhouse star of a rival glee club.

Glee's new season premieres on Thursday, Sept. 19 at 9/8c on Fox. Are you excited to see Lambert back on the small screen? Who do you think he should play?